Hormone replacement therapy (HRT) with estrogen and progestin does not alter risk of stroke in postmenopausal women with heart disease, according to a report in Circulation: The Journal of the American Heart Association (2001;103:638).
Researchers with the Heart and Estrogen-Progestin Replacement Study (HERS) found that hormone therapy did not significantly increase or decrease risk of stroke or of transient ischemic attacks (TIAs) in women who received it.
Mitka M. HRT Doesn't Raise Stroke Risk. JAMA. 2001;285(12):1567. doi:10.1001/jama.285.12.1567-JQU10002-4-1